“The best state for human nature is that in which, while no one is poor, no one desires to be richer, nor has any reason to fear being thrust back by the efforts of others to push themselves forward.”

Mais la raison est toujours mesquine auprès du sentiment; l'une est naturellement bornée, comme tout ce qui est positif, et l'autre est infini.
Source: A Woman of Thirty (1842), Ch. III: At Thirty Years.

2000s, The Logic of the Colorblind Constitution (2004)
Context: Harlan's dissenting opinion in Plessy, that the Constitution was colorblind, and that it did not countenance different and unequal classes of citizens, was based upon a belief in the truth of the principle of equality in which the founders and Lincoln had so profoundly believed. But this belief had been buried by progressivism, and has not been resurrected, except by the intellectual heirs of Leo Strauss. On intellectual grounds, it has never been refuted, and ought never to have been abandoned. There is not now, and never has been any such difference between one human being and another human being, or whatever race or color, such that one is by nature the ruler of the other, as any human being is by nature the ruler of any dog or any horse. For this reason, legitimate political authority can arise only by the consent of the governed, and consent can never be given for any reason other than the equal protection of the rights of the governed. Hence equal protection is the foundation of all constitutionalism, even apart from its specific inclusion in the Constitution itself. For more reasons than one, Justice Harlan's dissenting opinion ought to have been the opinion of the Court in 1896; even more ought it to have been the opinion of the Court in 1954. As Professor Edward J. Erler has demonstrated in the pages of the Claremont Review of Books, the principle of equal protection has never become the opinion of the Supreme Court of the United States, nor has it been favored in the writings of conservative jurists.

Freedom from Fear (1991)

TV appearances

2000s, God Bless America (2008), The American Proposition

Letter to Deng Xiaoping (1981)
Context: We must improve the relationship between China and Tibet as well as between Tibetans in and outside Tibet. With truth and equality as our foundation, we must try to develop friendship between Tibetans and Chinese through better understanding in the future. The time has come to apply our common wisdom in a spirit of tolerance and broadmindedness to achieve genuine happiness for the Tibetan people with a sense of urgency.
On my part, I remain committed to contribute my efforts for the welfare of all human beings, and in particular the poor and the weak to the best of my ability without any distinction based on national boundaries.

Letter to Eileen Danniheisser (1953), quoted in Albert Einstein: Creator and Rebel by Banesh Hoffman (1973), p. 261 http://books.google.com/books?id=sdDaAAAAMAAJ&q=%22think+with+fear%22#search_anchor. The exact date, or the name of his correspondent, is not given in the snippet of the book available online, but the quote appears after the letter to the Queen of Belgium from 12 January 1953, and is prefaced by "Nine months later, in words that recall the beliefs of an early atomic speculator, the Roman poet Lucretius, Einstein had written to an inquirer", followed by the quote. The name "Eileen Danniheisser" is given in Time: Volume 144, where it is mentioned in the snippets here http://books.google.com/books?id=JDAnAQAAIAAJ&q=%22obsessive+thoughts%22#search_anchor and here http://books.google.com/books?id=JDAnAQAAIAAJ&q=%22think+with+fear%22#search_anchor that she had written Einstein "about her obsessive thoughts of death as a child".
1950s

Source: New patterns of management, (1961), p. 5